Find the function value.Let f(x) = 9x2 - 7x + 6. Find f(-x).
A. -9x2 + 7x - 6
B. -9x2 + 8x + 6
C. 9x2 + 7x + 6
D. 8x2 + 8x + 5
Answer: C
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Find the second derivative.y = 8x2 + 5x - 2
A. 16x + 5 B. 8 C. 16 D. 0
Graph the equation by completing the table of values.y = 2x2 + 1
A. 
B. 
C. 
D. 
Use the relation's graph to determine its domain and range.
- 
= 1 
A. Domain: (-?, -3] or [3, ?) Range: (-?, ?) B. Domain: (-?, ?) Range: (-?, -3) or (3, ?) C. Domain: (-?, ?) Range: (-?, ?) D. Domain: (-?, -3] and [3, ?) Range: (-?, ?)
Solve.Mark and Rachel both work for Smith Landscaping Company. Mark can finish a planting job in 2 hours, while it takes Rachel 3 hours to finish the same job. If Mark and Rachel will work together on the job, and the cost of labor is $35 per hour, what should the labor estimate be? (Round to the nearest cent, if necessary.)
A. $29.17 B. $84.00 C. $87.50 D. $42.00